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1pc 50mm Tri-wing Y Shaped Screwdriver Bits 1/4inch Hex Shank Y Type Bit Y3 Y4 Y5 Y6 Y8 Tri-wing Screwdriver Head Bit - Screwdriver - AliExpress
![Amazon.com: ABSTW1 Triwing Bit Set starting with size .6mm (Y000) for iPhone, 8 Tri-Wing (Y) sizes included up to Y5 Amazon.com: ABSTW1 Triwing Bit Set starting with size .6mm (Y000) for iPhone, 8 Tri-Wing (Y) sizes included up to Y5](https://m.media-amazon.com/images/I/61cjN0A7b1L.jpg)
Amazon.com: ABSTW1 Triwing Bit Set starting with size .6mm (Y000) for iPhone, 8 Tri-Wing (Y) sizes included up to Y5
![DEWALT 3-Piece Assorted High-speed Steel Twist Drill Bit Set in the Twist Drill Bits department at Lowes.com DEWALT 3-Piece Assorted High-speed Steel Twist Drill Bit Set in the Twist Drill Bits department at Lowes.com](https://mobileimages.lowes.com/productimages/c6a81d54-016e-485b-937f-ffaa6b4a9592/01119784.jpg)
DEWALT 3-Piece Assorted High-speed Steel Twist Drill Bit Set in the Twist Drill Bits department at Lowes.com
![BitBuddy® TY bit set, 49 mm Hexagon 8-pcs. 1/4" E6,3 (42114) | BitBuddy® TY bit set, 49 mm | Wiha TY BitBuddy® | Bits | Tools BitBuddy® TY bit set, 49 mm Hexagon 8-pcs. 1/4" E6,3 (42114) | BitBuddy® TY bit set, 49 mm | Wiha TY BitBuddy® | Bits | Tools](https://i.ytimg.com/vi/Rb4bro7Um88/maxresdefault.jpg)
BitBuddy® TY bit set, 49 mm Hexagon 8-pcs. 1/4" E6,3 (42114) | BitBuddy® TY bit set, 49 mm | Wiha TY BitBuddy® | Bits | Tools
![10 Pieces Magnetic Y Shape Screwdriver Bit S2 Steel 1/4" Hex Shank 50mm Long (y3) - Power Tool Accessories - AliExpress 10 Pieces Magnetic Y Shape Screwdriver Bit S2 Steel 1/4" Hex Shank 50mm Long (y3) - Power Tool Accessories - AliExpress](https://ae01.alicdn.com/kf/HTB1cZl6KFXXXXaiXXXXq6xXFXXXJ/10-Pieces-Magnetic-Y-Shape-Screwdriver-Bit-S2-Steel-1-4-Hex-Shank-50mm-Long-Y3.jpg)
10 Pieces Magnetic Y Shape Screwdriver Bit S2 Steel 1/4" Hex Shank 50mm Long (y3) - Power Tool Accessories - AliExpress
![Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - - Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -](https://m.media-amazon.com/images/I/51VcD-SGbsL._AC_UF894,1000_QL80_.jpg)
Utoolmart Y Shape Screwdriver Bits, Y1+Y2+Y3+Y4 Magnetic Y Shape Head Magnetic Screw Driver Bit, with 1/4 Inch Hex Shank, 50mm Length S2 Steel Screw Driver Kit Tools, for Repair Work, 1 Set - -
![mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange mechanical engineering - What is this Y-shaped screwdriver bit, and what is its purpose? - Engineering Stack Exchange](https://i.stack.imgur.com/6A1Be.jpg)